基于DSP的谐波电能计量算法研究  

Research on Harmonic Power Measurement Algorithm Based on DSP

作　　者：张庆辉[1] 崔勇[2] 朱亚峰[1] 

机构地区：[1]河南工业大学信息科学与工程学院,郑州450001 [2]华北电力大学经济与管理学院,北京102206

出　　处：《电测与仪表》2014年第6期9-13,共5页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(61171056)

摘　　要：分析了已有FFT算法在谐波电能计量应用中产生的缺陷,提出了加窗FFT谐波电能计量算法,并给出了基于加窗FFT谐波电能计量算法的基本电能计量参数计算公式。运用Matlab进行了算法仿真,构建了谐波电能计量算法的DSP实验系统,编写了浮点型DSP芯片TMS320F28335主程序流程图及电能计量算法子程序流程图,对本文算法进行了实验验证。结果证明,本文的谐波电能计量算法具有很高的准确度,兼具可行性和实用性。With the analysis on the defects produced by the application of FFT algorithm in harmonic electric energy metering, a harmonic energy metering algorithm using windowed FFT is proposed, and the calculation formula of basic electric energy measurement based on the algorithm are presented. Matlab is used for algorithm simulation, and the DSP experiment system with the harmonic energy metering algorithm is constructed. Based on floating-point DSP TMS320F28335, Flowcharts of the main program and the subroutine for electric energy metering algorithm are presented, and the proposed algorithm is tested by experiments. Experimental results show that the harmonic energy metering algorithm has high accuracy, feasibility and practicability.

关 键 词：谐波 电能计量 算法研究 

分 类 号：TM93[电气工程—电力电子与电力传动]